Pith Number

pith:SHV3OPN7

pith:2021:SHV3OPN7OKO5UZTCLPXVCKF7QR

not attested not anchored not stored refs pending

A gradient-compression-based compact high-order gas-kinetic scheme on three-dimensional hybrid unstructured mesh

Kun Xu, Wei Shyy, Xing Ji

arxiv:2107.05169 v1 · 2021-07-12 · math.NA · cs.NA · physics.comp-ph · physics.flu-dyn

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SHV3OPN7OKO5UZTCLPXVCKF7QR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T03:42:44.116201Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91ebb73dbf729dda66625bef5128bf84427eeee32d222b23a45cd4d4e3d13d02

Aliases

arxiv: 2107.05169 · arxiv_version: 2107.05169v1 · doi: 10.48550/arxiv.2107.05169 · pith_short_12: SHV3OPN7OKO5 · pith_short_16: SHV3OPN7OKO5UZTC · pith_short_8: SHV3OPN7

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/SHV3OPN7OKO5UZTCLPXVCKF7QR \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 91ebb73dbf729dda66625bef5128bf84427eeee32d222b23a45cd4d4e3d13d02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24fd25ac878e7fc51bf7c9f12345f65dbca8d6070f603235850135e59f174f61",
    "cross_cats_sorted": [
      "cs.NA",
      "physics.comp-ph",
      "physics.flu-dyn"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-07-12T02:45:53Z",
    "title_canon_sha256": "ba8f1049eb248a53aba7cc4e7eedf8bb30462828ba9f6aa74a8825ed0c4a60b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.05169",
    "kind": "arxiv",
    "version": 1
  }
}